344638 has 16 divisors (see below), whose sum is σ = 599040. Its totient is φ = 145656.

The previous prime is 344629. The next prime is 344639. The reversal of 344638 is 836443.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2³⁴⁴⁶³⁸ is an apocalyptic number.

344638 is a deficient number, since it is larger than the sum of its proper divisors (254402).

344638 is a wasteful number, since it uses less digits than its factorization.

344638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351.

The product of its digits is 6912, while the sum is 28.

The square root of 344638 is about 587.0587704821. The cubic root of 344638 is about 70.1112516644. Note that the first 3 decimals are identical.

The spelling of 344638 in words is "three hundred forty-four thousand, six hundred thirty-eight".